Ollay hundrey

She ollay veg Holarctagh ee ollay hundrey (Cygnus columbianus).  Ny keayrtyn, t'ee goll er rheynn ayns daa ghooie, Cygnus bewickii Palaearctagh as C. columbianus hene Nearctagh; ny keayrtyn elley ta oayllee goaill roo myr y dooie cheddin. Dy goan, ta oayllee goaill rish fo-ghooie elley, C. c. jankowskii, ass yn Roosh hiar.  Ny keayrtyn, ta'n ollay hundrey goll er rang-oardraghey 'sy ghenys Olor marish ollee Arctagh elley.

Ta ennym C. c. bewickii currit ec William Yarrell ayns 1830 rere Thomas Bewick, ny sur-ghrainneyder caslyssyn jeh ushagyn as beiyn.Uglow, Jenny (2006). Nature's Engraver: A Life of Thomas Bewick. Faber and Faber, p. 396, ISBN 0226823911. 

Imraaghyn

Lioaryn
 Collinson, M. (2006): Splitting headaches? Recent taxonomic changes affecting the British and Western Palaearctic lists. British Birds 99(6): 306–323. Giare-chummey HTML

Kianglaghyn çheumooie

 Tundra Swan – Cornell Lab of Ornithology
RSPB Bewick's Swan
WWT Slimbridge
Tundra Swan
Clouagyn-Cygnus columbianus
Cooid yl-veanagh

Ronney:Ollee
Ronney:Cygnus
Ronney:Ushagyn arraghee ny lieh-chruinney hiar
Ronney:Ushagyn arraghee ny lieh-chruinney heear
Ronney:Ushagyn ny h-Asserbajaan
Ronney:Ushagyn ny Shapaan
Ronney:Ushagyn ny Pakistaan
Ronney:Ushagyn ny h-Oarpey
Ronney:Ushagyn ny Turkee
Ronney:Ushagyn ny Canadey
Ronney:Ushagyn ny Steatyn Unnaneyssit
Ronney:Beiyn Arctagh